Slide for metal-dressing machines.



No. 707,273. Patented Aug. l9, I902.

F. P sum-Ln & 0. c. BURTON. SLIDE F OR METAL DRESSING MACHINES.

'Apphcation filed July 30, 1901.)

(No Model.) '3 Sheets- Sheet 1.

WlTNE SSES': iNVENTORS v F.P.STIKER&O.C.BURTON. QIZZW W ,BY

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3 Sheets--$heet 2.

Patented Aug. I9, 1902.

(Application filed July 30,, 1901.,

F. P. STIKER & 0. C. BURTON. SLIDE FUR METAL DRESSING MACHINES.

INVENTORS F.P.STIK-ER&O. C.BURTO'N.

M6! 0 fa ATT NH WITNESSES:

N0. 707,273; Patented Aug. I9, I902.

F. P. STlKl-IH 81. 0. C.-BURTON.

SLIDE FOB METAL DRESSING MACHINES.

* (Appli ntioxi filed July 30, 1901.) N 0 M o d e l 3 Sheets-Sheet 3.

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m: NORRIS PEYERS co, woroumm wunmmm o c NTTED STATES PATENT OFFICE.

FLAVIUS P. STIKER, OF BUFFALO, AND ORVILLE O. BURTON, OF NORTH TONAWANDA, NEW YORK.

SLIDE FOR METAL-DRESSING MACHINES.

SPECIFICATION forming part of Letters Patent No. 707,273, dated August 19, 1902.

Application filed July 30, 1901.

T0 at whom/it may concern:

Be it known that we, FLAVIUS P. STIKER, a resident of Bufialo, in the county of Erie, and ORVILLE O. BURToN,a resident of North Tonawanda, in the county of Niagara, State of New York, citizens of the United States, have invented certain new and useful Improvements in Slides for Metal-Dressing Machines, of which the following is a specification.

In certain types of machine for performing work upon objects, such as' cutting threads upon bolts, means are necessary for driving the bolts to and between the dies and for lifting the bolt from the dies after the threads are cut. The present invention relates to such means in the form of a slide and its adj uncts and it consists in detail of a barrel, gibs thereinrunning longitudinally thereof and having radial bearing-surfaces, said barrel having circular bearing-surfaces between said gibs, a reciprocating slide within said barrel and provided with circular and radial bearing-surfaces which bear upon the circular and radial surfaces in said barrel, a plunger carried by said slide, a spring for pressing upon said plunger, adjustable stops for limiting the action ofsaid spring, means for adjusting the pressure of said spring upon said plunger, and a carrier laterally rigid with said slide for holding a bolt or other object centrally under said plunger.

Figure 1 is a general front elevation of that portion of the machine which includes our invention. Fig. 2 is a plan of the principal portion of what is shown in Fig. 1. Fig. 3 is a plan of one of the gibs. Fig. a is a side View of one of the gibs. Fig. 5 is a central longitudinal section of the whole slide with certain adjuncts omitted. Fig. 6 is a front elevation of the same slide, a portion of the front being shown in Fig. 1. Fig. 7 is a crosssection at the line A B in Fig. 6. Fig. 8 is a plan of the slide, being the end view from the top of Fig. 6. Fig. 9 is a view of the lower end of the slide, showing how the slide appears on the lower end of Fig. 6. v Fig. 10 is a side elevation of a portion of the slide containing the plunger equipment, which is invisible in Fig. 1 because hidden by the barrel 38 The view, moreover, is on a much Serial No. 70,212. (No model.)

greater scale than that used in Fig. 1. Fig. 11 is a longitudinal central section in part of that which is shown in Fig. 10.

The slide is numbered 38, and it has outside circular bearing-surfaces 38 and radial bearing-surfaces 38 The axis of the slide is vertical. The ways for the slide are also circular and radial for the corresponding parts of the slide and are formed inside of the barrel 38 forming a part of the frame. The importance of this feature resides in the form of the slide and barrel, which'being circular and radial are accurate in their functions independent of the usual wearing away. As a consequence bolts threaded by this machine are accurate and uniform and are always sure to be held centrally for threading. To relieve the weight of the slide, a counterweight 41 pulley 4.1, and a chain 413 are provided for securing approximate equilibrium. The slide is provided with a central opening having tracks or guides 80,upon which bears a sliding block 77 and adapted to move slightly back and forth horizontally,while at the same time movable up and down with the slide 38. 79 maybe taken to indicate a portion of a lever pivoted to a block 77 for reciprocating the slide 38 up and down. The slide itself, 38, does not bear directly upon the head of the bolt for driving the latter downward, but carries a steel-headed plunger whose construction, together with its adjuncts, is as follows: The head of the plunger is 55, which is fitted in a rod 55*, which in turn is threaded at its upper portion and is movable up and down in a bushing 161, carried in the slide 138. The upper end of the rod 55 or plunger works freelyin a recess in a screw 141, having an opening 14:1. at its lower end, into which said plunger may enter. The screw 14:1 is held fast to the slide 38 by the threaded portion 111. There are two jam-nuts 159 and 160 upon the-rod 55 to adjust said plunger in height as measured from the dies. There are two other jam-nuts 150 and 158 to adjust the movement of the'plunger, in conj auction with a spring 144, which presses upon the nut 158 to resist the motion of the plunger upward when acted upon by the head of the bolt. The other end of the helical spring 144: bears against a milled head 143,

which is to adjust the strength of the spring 144 and is screwed upon the threaded piece 141. Normally said spring is not under much tension and is to act as a cushion when the plunger-head 55 first strikes the bolt-head. Finally the nut 158 will strike the lower end 141 of the screw 1&1, and therefore the bolt will be driven down by the motion of the slide without any further yielding effect. Caution is necessary to locate the plunger 55 at the center of the slide 38, while at the same time the bolt-carrier 95, supported on the spindle 26, which is laterally rigid with the slide, should hold the bolt centrally u nder the plunger. Any usual wear of the slide will not be objectionable, because the bolt ]3 will still come to a central position. The carrier may be turned to one side to receive bolts, the.

We claim as our invention 1. In a metal-dressing machine, the combination of a barrel having internal circular and radial surfaces,a slide having corresponding circular and radial surfaces and free to reciprocate within said barrel, a plungerhead, projecting centrally from the lower end of said slide, and a carrier supported at one side of the plunger for supporting the object, to be worked upon, centrally under said plunger, the said carrier being supported by the said slide.

2. In a metal-dressing machine, the combination of a barrel having internal circular and radial bearing-surfaces, a slide having corresponding circular and radial surfaces and free to reciprocate within said barrel, a plunger-head projecting from the lower end of said slide, a counterweight arranged to counterbalance the weight of said slide, and a carrier for supporting said object, and movable with said slide, the said carrier being supported by the said slide.

3. In a metal-dressing machine, the combination of a barrel, gibs therein running longitudinally thereof, and having radial bearing-surfaces, said barrel having circular bearing-surfaces between said gibs, a reciprocatin g slide within said barrel, and provided with circular and radial bearing-surfaces which bear upon the circular and radial surfaces in said barrel, and a carrier rotary about a spindle located eccentrically to said plunger.

4. In a metal-dressing machine, the combination of a barrel, gibs therein running 1ongitudinally thereof, and having radial bearin g-surfaces, said barrel having circularbearing-surfaces between said gibs, a reciprocating slide within said barrel, and provided with circular and radial bearing surfaces which bear upon the circular and radial surfaces in said barrel, a plunger carried by said slide, a spring for pressing upon said plunger, adjustable stops for limiting the action of said plunger and means for adjusting the pressure of said spring upon said plunger.

5. In a metal-dressing machine, the combination of a plunger supported thereby and consisting of the combination of a rod 55 threaded at its upper portion and movable up and down in said slide, a threaded rod 141 fixed to said slide, and having a hollow lower portion into which partially extends the rod 55", adjustable stop jam-nuts 159 and 160 on said rod 55, two other adjustable jam-nuts 150 and 158 on the same rod, a nut 143 on the rod 141,- and a spring between said nut and the jam-nuts 150 and 158.

In testimony whereof we have hereunto subscribed our names this 23d day of July, 1901.

FLAVIUS P. STIKER. L. s] ORVILLE O. BURTON. LL. s]

\Vitnesses:

L. C. WEAD, M. F. SHARP. 

